Replay candump: `MessageSync` (python-can) and `canplayer` (can-utils) behave slightly differently

Hi,
### Observation:
Regarding the skip parameter `MessageSync` (python-can) and `canplayer` (can-utils) behave slightly differently.

`canplayer -s 1 -I candump.log`
skip gaps in timestamps > 1 second
if skip gap is detected the subsequent CAN msg is sent *instantly*

however

`MessageSync(reader,timestamps=True, skip=1)`
skip gaps in timestamps > 1 second
if skip gap is detected the subsequent CAN msg is sent only *after 1sec*

As a result there is an additional gap of 1sec if I compare both traces.

### Expected behavior
`canplayer` and `python-can` replay stored canlogs exactly the same

### Additional context
I'm not really sure whether this is a bug or a feature.
However I decided to share my experience as I spent quite some time to find the root cause of my problem.
Many thanks ...